| 摘要 |
PURPOSE:To make it easy to clean a ventilation fan by making the drive connection section between a motor and a fan and allowing the frame to mount the ventilation fan to be freely mountable and removable relative to the mounting opening. CONSTITUTION:A bell mouth 8 is freely mountable to and removable from a mounting frame 3, and the whole of the mounting frame 3 comprising a shut ter 4, fan 6 and motor 5 is freely mountable to and removable from a mounting opening 2. Further, a motor cover 5b is freely mountable to and removable from an arm 5a which supports it, and a motor main body 5c is freely mounta ble to and removable from the motor cover 5b. The motor cover 5b is constructed so as to fit the motor cover 5b to a mounting hole 5' provided on an arm 5a and it is positioned by a projection 5b' provided on the motor cover 5b. The motor body 5c is constructed to be able to be mounted and re moved freely by forming the motor cover 5b with a resin material, so that the motor 5c can be pressed in. With this construction, it is possible to remove the motor 5 without changing the position of the shutter 4 and fan 6 which are provided inside of the mounting frame 3. |
